The element copper has naturally occurring isotopes with mass numbers of 63 and 65. The relative abundance and atomic masses are 69.2% for mass= 62.93 amu, and 30.8%
for mass= 64.93 amu.
Calculate the average atomic mass of copper.

The ph of carrots are 5.0 how it is classified a.acidic b.basic c.indicator d.neutral

Express the following number in scientific notation. 0.026890 =

Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)